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  <h1 class="topictitle1">Specifying an External Cluster as a Management Cluster</h1>
  <div>
   <p id="admin-00072__en-us_topic_0000001839144913_p8060118">The <span id="admin-00072__en-us_topic_0000001839144913_text858535111373">product</span> allows you to specify an external cluster as the management cluster. After a management cluster is specified, the local cluster and the management cluster synchronize information about managed clusters in the form of jobs. You can log in to the management cluster to manage the managed clusters.</p>
   <div class="section" id="admin-00072__en-us_topic_0000001839144913_section183791249124013">
    <h4 class="sectiontitle">Prerequisites</h4>
    <ul id="admin-00072__en-us_topic_0000001839144913_ul18921855104018">
     <li id="admin-00072__en-us_topic_0000001839144913_li1397081564113">The local cluster does not have other management clusters except local clusters.</li>
     <li id="admin-00072__en-us_topic_0000001839144913_li0255162924218">The external cluster has been added as a managed cluster.</li>
     <li id="admin-00072__en-us_topic_0000001839144913_li0397696506">The CA certificate of the <span class="uicontrol" id="admin-00072__en-us_topic_0000001839144913_uicontrol18665124018293"><b><span id="admin-00072__en-us_topic_0000001839144913_text1111857114120"><strong>Server Certificate</strong></span></b></span> type of the local cluster has been added to the external cluster to be specified as the management cluster, and the type has been set to <span class="uicontrol" id="admin-00072__en-us_topic_0000001839144913_uicontrol1871114487298"><b><span id="admin-00072__en-us_topic_0000001839144913_text1727141217424"><strong>Backup/Multi-domain/Replication Cluster</strong></span></b></span>.</li>
    </ul>
   </div>
   <div class="section" id="admin-00072__en-us_topic_0000001839144913_section78811082401">
    <h4 class="sectiontitle">Precautions</h4>
    <p id="admin-00072__en-us_topic_0000001839144913_p1663711104011">A managed cluster can be specified as the management cluster of multiple clusters.</p>
   </div>
   <div class="section" id="admin-00072__en-us_topic_0000001839144913_section36111315401">
    <h4 class="sectiontitle">Procedure</h4>
    <ol id="admin-00072__en-us_topic_0000001839144913_ol159244461703">
     <li id="admin-00072__en-us_topic_0000001839144913_li0198134611381"><span>Choose <span class="uicontrol" id="admin-00072__en-us_topic_0000001839144913_uicontrol67021432182"><b><span id="admin-00072__en-us_topic_0000001839144913_text2070133213817"><strong>System</strong></span> &gt; <span id="admin-00072__en-us_topic_0000001839144913_text20701153218812"><strong>Infrastructure</strong></span> &gt; <span id="admin-00072__en-us_topic_0000001839144913_text470214321488"><strong>Cluster Management</strong></span></b></span>.</span></li>
    </ol>
    <ol start="2" id="admin-00072__en-us_topic_0000001839144913_ol962694310415">
     <li id="admin-00072__en-us_topic_0000001839144913_en-us_topic_0274211889_en-us_topic_0224938451_li18900716111720"><span>In the <span class="uicontrol" id="admin-00072__en-us_topic_0000001839144913_uicontrol467217991913"><b><span id="admin-00072__en-us_topic_0000001839144913_text1921031918232"><strong>Multi-domain Clusters</strong></span></b></span> area, choose <span class="menucascade" id="admin-00072__en-us_topic_0000001839144913_menucascade94051958925"><b><span class="uicontrol" id="admin-00072__en-us_topic_0000001839144913_uicontrol1640414582212"><span id="admin-00072__en-us_topic_0000001839144913_text1063318117218"><strong>More</strong></span></span></b> &gt; <b><span class="uicontrol" id="admin-00072__en-us_topic_0000001839144913_uicontrol1711552131"><span id="admin-00072__en-us_topic_0000001839144913_text117951238152319"><strong>Set as Management Cluster</strong></span></span></b></span> in the row that contains the desired external cluster.</span></li>
     <li id="admin-00072__en-us_topic_0000001839144913_li1263218485434"><span>Enter information in the displayed dialog box. The following table describes related parameters.</span><p></p>
      <div class="tablenoborder">
       <table cellpadding="4" cellspacing="0" summary="" id="admin-00072__en-us_topic_0000001839144913_table4411125644415" frame="border" border="1" rules="all">
        <caption>
         <b>Table 1 </b>Parameters for specifying a management cluster
        </caption>
        <colgroup>
         <col style="width:21.33%">
         <col style="width:78.67%">
        </colgroup>
        <thead align="left">
         <tr id="admin-00072__en-us_topic_0000001839144913_row15411165620445">
          <th align="left" class="cellrowborder" valign="top" width="21.33%" id="mcps1.3.4.3.2.2.1.2.3.1.1"><p id="admin-00072__en-us_topic_0000001839144913_p19411145684415">Parameter</p></th>
          <th align="left" class="cellrowborder" valign="top" width="78.67%" id="mcps1.3.4.3.2.2.1.2.3.1.2"><p id="admin-00072__en-us_topic_0000001839144913_p13411756164413">Description</p></th>
         </tr>
        </thead>
        <tbody>
         <tr id="admin-00072__en-us_topic_0000001839144913_row941115563444">
          <td class="cellrowborder" valign="top" width="21.33%" headers="mcps1.3.4.3.2.2.1.2.3.1.1 "><p id="admin-00072__en-us_topic_0000001839144913_p2411135617447"><span id="admin-00072__en-us_topic_0000001839144913_text195017371935"><strong>Name</strong></span></p></td>
          <td class="cellrowborder" valign="top" width="78.67%" headers="mcps1.3.4.3.2.2.1.2.3.1.2 "><p id="admin-00072__en-us_topic_0000001839144913_p10411185684419">User-defined name of the local cluster displayed in the remote cluster.</p></td>
         </tr>
         <tr id="admin-00072__en-us_topic_0000001839144913_row441115614449">
          <td class="cellrowborder" valign="top" width="21.33%" headers="mcps1.3.4.3.2.2.1.2.3.1.1 "><p id="admin-00072__en-us_topic_0000001839144913_p6411756114410"><span id="admin-00072__en-us_topic_0000001839144913_text6311749439"><strong>Username</strong></span></p></td>
          <td class="cellrowborder" rowspan="2" valign="top" width="78.67%" headers="mcps1.3.4.3.2.2.1.2.3.1.2 "><p id="admin-00072__en-us_topic_0000001839144913_p20411145613445">Username and password of the local cluster system administrator.</p></td>
         </tr>
         <tr id="admin-00072__en-us_topic_0000001839144913_row941116563443">
          <td class="cellrowborder" valign="top" headers="mcps1.3.4.3.2.2.1.2.3.1.1 "><p id="admin-00072__en-us_topic_0000001839144913_p17411256154417"><span id="admin-00072__en-us_topic_0000001839144913_text1090915591237"><strong>Password</strong></span></p></td>
         </tr>
        </tbody>
       </table>
      </div> <p></p></li>
    </ol>
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    <div class="parentlink">
     <strong>Parent topic:</strong> <a href="en-us_topic_0000001839224421.html">Managing Multi-domain Clusters</a>
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